Zhang, Haibo ; Zhu, Yiwei ; Fan, Pengyuan ; Marwat, Moshsin Ali ; Ma, Weigang ; Liu, Kai ; Liu, Hongming ; Xie, Bing ; Wang, Ke ; Koruza, Jurij (2018)
Temperature-insensitive electric-field-induced strain and enhanced
piezoelectric properties of <001> textured (K,Na)NbO3-based leadfree
piezoceramics.
In: Acta Materialia, 156
doi: 10.1016/j.actamat.2018.07.005
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Texturing is an effective method to improve the piezoelectric properties of lead-free piezoceramics. In the present study, textured (K,Na)NbO3-based piezoceramics with a Lotgering factor of 89.7% were successfully fabricated by the templated grain growth (TGG) method. Compared with its non-textured counterparts, great enhancements of the piezoelectric coefficient (50% improvement) and electromechanical coupling factor are observed in the textured samples. More importantly, electric-field-induced strain is also remarkably improved, as evident by a 17% higher large-signal piezoelectric coefficient (346 pm/V) of the textured sample. A relatively low strain deviation of 2% is observed between room temperature and 150 °C, and even up to 175 °C, 86% of their room temperature large-signal piezoelectric coefficient value is maintained. This temperature stability of textured (K,Na)NbO3-based piezoceramics is of great significance for actuators with a stable response over a broad temperature range.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2018 |
| Autor(en): | Zhang, Haibo ; Zhu, Yiwei ; Fan, Pengyuan ; Marwat, Moshsin Ali ; Ma, Weigang ; Liu, Kai ; Liu, Hongming ; Xie, Bing ; Wang, Ke ; Koruza, Jurij |
| Art des Eintrags: | Bibliographie |
| Titel: | Temperature-insensitive electric-field-induced strain and enhanced piezoelectric properties of <001> textured (K,Na)NbO3-based leadfree piezoceramics |
| Sprache: | Englisch |
| Publikationsjahr: | 11 Juli 2018 |
| Verlag: | Elsevier |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Acta Materialia |
| Jahrgang/Volume einer Zeitschrift: | 156 |
| DOI: | 10.1016/j.actamat.2018.07.005 |
| Kurzbeschreibung (Abstract): | Texturing is an effective method to improve the piezoelectric properties of lead-free piezoceramics. In the present study, textured (K,Na)NbO3-based piezoceramics with a Lotgering factor of 89.7% were successfully fabricated by the templated grain growth (TGG) method. Compared with its non-textured counterparts, great enhancements of the piezoelectric coefficient (50% improvement) and electromechanical coupling factor are observed in the textured samples. More importantly, electric-field-induced strain is also remarkably improved, as evident by a 17% higher large-signal piezoelectric coefficient (346 pm/V) of the textured sample. A relatively low strain deviation of 2% is observed between room temperature and 150 °C, and even up to 175 °C, 86% of their room temperature large-signal piezoelectric coefficient value is maintained. This temperature stability of textured (K,Na)NbO3-based piezoceramics is of great significance for actuators with a stable response over a broad temperature range. |
| Freie Schlagworte: | Texture Lead-free piezoceramics Piezoelectric properties Temperature stability |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Nichtmetallisch-Anorganische Werkstoffe |
| Hinterlegungsdatum: | 11 Jul 2018 11:53 |
| Letzte Änderung: | 11 Jul 2018 11:53 |
| PPN: | |
| Export: | |
| Suche nach Titel in: | TUfind oder in Google |
 |
Frage zum Eintrag |
Optionen (nur für Redakteure)
 |
Redaktionelle Details anzeigen |
Drucken
Impressum